Why is my Brother DCP-7055 not printing in 13.10 Saucy?

view story

http://askubuntu.com – I upgraded from Ubuntu 12.04 LTS to 13.10. Actually,it was a new installation (I reformatted the drives before installing 13.10). Everything seems nice and new, but whenI installed my printer/copier/scanner machine, Brother DCP-7055 ...well, it installed properly: The OS recognized the printer; and I was even able to access it from my browser, thru the URL: localhost:631/printers/. Then, when I clicked Print Test Page, it wasn't printing. I thought it was just taking longer, but ten minutes later, nothing happened. My printer even has already gone into deep sleep, and still nothing. So, I ass (HowTos)